need help with multiple maps on garmin StreetPilot c510

Hay
I have some problem with putting multiple maps (Adriaroute and City Navigator EU 2011 or Adriaroute and city navigator EU 2009) on Garmin StreetPilot c510 with MapSource. When I go to setup -> Map -> Map Info I can see both map (and they are marked), but when I go to route planer (Where to -> Address -> Spell Country) I can only see countries from map Adria route. And the weird thing is that when i go to Where to-> Cities and spell Zurich or Barcelona I can see them on map. On Browse map I can also see countries from both maps. Both city navigator EU works when they are alone on SD card, then I can see all countries from CN EU in route planer.

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